Demountable automobile-rim



M. KOHL AND w. REN NER.

DEMOUNTABLE AUTOMOBILE RIM.

APPLICATION FILED JULY 22, 1920.

Patenwd Apr. 12, 1921.

2 SHEETSSHEET 1- r V 3%,3; Mike Kohl William Banner M. KOHL AND. w. RENN ER.

DEMOUNTABLE AUTOMOBILE RIM.

I APPLICATION FILED JULY 22; 1920. I I 1 374 535 7 Patented Aqua-12, 1921.

2 SHEETSSHEET 2.

Willi am REnnET UNITED sTATEs' TE T FFI9E-.,

MIKE KOHL, or NORTH MILWAUKEE, AND wumm asnnsacr mtwifixm' "w Is CONSIN; SAID RENNER nssrelvonuo ,sArn K'onn DEMOUNTABLE AUTOMOBIlLE-RIM. i i J: X i

Z '10 all whom it may concern:

Be it known that we, MIKE KOHL and XVILLIAM RENNER, citizens of the United States, and residents of North Milwaukee and Milwaukee, in the county of Milwaukee and State of lVisconsin, have invented certain'new and useful Improvementsin De mountable Automobile -Rims, and we do hereby declare that the following is a full, clear, and exact description thereof.

Our invention relates to improvements in demountable wheel rims for use in connec= tion with'pneumatic tires, and it is our pur pose, broadly viewed, to provide a rim, the

Construction of which is such'that it may be quickly and easily applied to or removed from a tire without necessitating the employment of special tools.

More particularly it is our purpose to provide arim which is collapsible to permit its read detachment from a pneumatic tire,

and whlch may be expanded so as to be en-- gaged with a tire and positively maintained in this position by a device permanently carried by the rim and constituting its operating means; 7

The rim of our invention consists. of a plurality of sections having interlocking engagement with each other and means between certain of the sections operable to positively lock all of the sections against accidental disengagement, which means also acts when moved to unlocked position to positively collapse the sections, and it is in the novel features ofv construction, combination and relative arrangement of these-' parts which constitute our invention.

We are disclosing our invention in the best form known to us at present, but it will be understood that it is susceptible to' various changes and desirable additions I without departing from its spirit or sacrific ing any of its advantages, the extent to into practice,

panded position;

which we confine ourselves in this respect being defined in and the appended cl aims.

In the drawings illustrative of a preferred manner of carrying our" nvent on Figure l is a side elevation of 'a'rim con structed maccordance. with our mvention, and showing the samefyjlocked -1n its ex- Fig. 2, an inner face view of a portion of lapsed POSiti n 1.. '1.

v w I1; 3: 1 no.- Specification of Letters latent Patented -TApr.' 12,19 1 Application n ed jzrul aa, 15201" Seria1 1 I 9. 398,i63 "I the rim, 'showin'gthe ineanslfor'contracting and exp'and1ng the rim in locked position, F 1g. 3, a vew similar to ,Fig. "2, but looking toward the outer face offthe ,rim, f

F 1g. 4, a side elevation-"offhe rim in col- Fig. 5, an inner face View oftlie meeting ends of two of the r 1m sect ons; showing: a

slightly modified construction, and

' Fig. 6, a section on theIlinef6 6 of Fig. 5,

Referring now to the drawings .in detail, 1t w1ll be observed that our rim, in its. preferred embodiment is constituted in three secitons, 10, 11 and 12', one of which. section 11, is of considerably less length thanthe other two sections,'which latter are. of substantlally equal len th, Manifestly; our rim may be made up of any desired number of sections, but we prefer to construct it ofbut three sections, because "these will accomplish all of the functions'of more numerous sections, andthe cost of their manufacture and assembly s proportionatelylless.

The meeting end of sections 10 and '12are relatively. flexibly connected by a 'plate',13 I

permanently secured to the end'iofrone of said sections, andj'so connected with the end of the other ofsa'id sections as to constantly maintain the two sections connected. and yet permlt them to, be angularly moved with respect to each other, much in the manner that an ordinary hinge would permit such angular movement.

Plate 13' is secured to the inner-face ofone of the rim sections by a rivet or other suit, able fastener 14, and said plate has extending therefrom lugslo which engage-in open-1 lugs 16 provided'ln the un 'sectiontoreceive them, said lugs coactlng with] said rivetto firmly hold the plate against anymovement with respect to its. attahed; rim section whatsoever. f

portion of the plate lgpr'ojects beyond the end of the rim sectionito which itftis secured and terminatesiii'alug l'f'which {is bent outwardly" at "substantially right angles thereto and engaged in an pening "18 in and near the end of the "adjacentiri'inwsec tion provided to receive it, a plate" 19"being "secured totheinnerface latter. rim section and bearing? a I mapper-non of said lug 1L8 toj'iprevent; itsj ae didenfial re moval froni'its opening; Liigs QD, similar to the lugs 15, project outwardly from"the the head is disposed inwardly with respect both of the T-slots 25 when the sections 11,

sides of the projecting portion'of the plate and are received in openings 21 in the adjacent rim section, and these latter lugs serve to relieve thelug 17 of.considerable stresses and strains both during use and manipulation of the rim. A pin 22, carried the projecting portion of the plate and 'received in an opening 23, in the adjacent rim section, c'oacts withthe lug 17 to further reduce the liability of accidental detachment of the plate and at the same time acts in conjunction with the lugs 20 to take up stresses and strains.

' From the foregoing, it will be apparent.

that a connection is provided between sections 10 and 12 which permits these sec; tions to bB IDOVBCl relatively angularly in the general plane of the rim and which also maintains said sections firmly'connected. A similar connection,-designated in its entirety by the numeral 24!, is provided between the adjacent ends of sections 10 and 11. v

A combined operating andloc-king device for the rim sectiqnsis arranged between sections 11 and 12, the adjacent ends of which are preferably, cut at. anangle, as shown, or cut square it'desire d. In either event, the end of each rim section has cut. therein a T-shaped slot 25, the straight por tion of which-opens throughthe end, while to the body of the rim section.

Somewhat remote from its end having the T-slot, one of v the rim sections 11 or 12,

preferably the latter, has formed therein an opening 26 and to either side-of this opening, upon theinner face of the rim, are secured plates 27. Extending acrossthe opening}; and having its ends fastened by the plates 27, is a pin 28upon which is pivota'lly mounted one end of a .lever arm '29 curved to conform to the curvature of the rim when its sections are in expanded position. f j

Upon its convex face, intermediate its ends, lever arm 29 hassecure'd' thereto a plate 30 shaped to be snugly'received by and-12 are'arranged with their adjacent ends 1n abutting relation.

"A pin 31 is secured between the plate I and thelever arm 29 with its ends projectbody of the adjacent rim section wherebypivotal movement of the lever arm will result in relative longitudinal movement of the two rim sections as will. be apparent.

rection the rim as a whole Will be expanded,

Plates 34, secured to the adjacent rim section. abut the ends of the arms and serve to maintain the. lugs 33 in their openings.

From the foregoing, it will be apparent that when the lever29 is swung in one direction the rim as a whole will be contracted and when swung in the reverse dithe flexible joints between the sections per-- mitting them to swing relatively angularly .durmg contraction and expansion of the rim as 'previously described. When the lever is swung to expand the rim-it will be observed that the plate- 30 will move into the T-slots 25 and act to firmly connect the sections 1.1 and 12, the lever, becauseof its curvature, lying snugly against the inner faces of the body portions of said sections in which position it may be secured by an eccentrically pivoted dog 35 on the section 11 having a portion which,-,;when moved to one position, will extend over the face end of the lever and prevent the same from being i swung upon its pivot. Witlithe rim in ex-' panded position, it'is only necessary to re- Lease the dog 35 and swingthe lever upon its pivot in order to break the beveled joint between sections 11 and 12 and contract the rim.

In Figs. 5 and 6, it will be'noted that an arrangement comprising a pair ofiplates 36 secured to the section 11 andrelatively connected by a pin 37 to which may be-pivotally connected an arm similar to one of the arms 32, may be provided in'lieu' of the connection,between the lever-andsection 11 as previously set forth. This arrangement may be used without disturbing the remaining parts of the rim sections or their connecting devices. We claim I 1. A rim including relatively movable sections, each of said sections having a slot formed therein, a lever pivoted to one of said sections, an arm connecting said lever andthe other of said sections, and a plate on said lever and. engageable in saidslots when the lever is at its limit o-f pivotal I kee, in the county of Milwaukee and State l of lVisconsin.

MIKE KOHL," WILLIAM RENNER. j 

